Jenkins does not start on macOS 10.12 (Sierra)

Question

After upgrading my macOS to Sierra, when I start Jenkins using launchctl load I cannot connect to localhost:8080. If I call launchctl load again, I see response \"service alread

Answer 1

I was facing issue in loading jenkins-cli.plist command on my MacOs(Mojave version).

Mac Version : Mojave 10.14.6 Jenkins Version : 2.190.1

I installed jenkins using .pkg file.

Reference link : https://java2blog.com/install-jenkins-mac-os-x/

When executing below command,

sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist

I was facing error saying "already loaded".

Solution:

step 1. Check jenkins logs for exact error.

tail -f /var/log/jenkins/jenkins.log

(In my case, it was port binding issue, port 8080 was already being used by some other application)

step 2. So I decided to start jenkins on some other port (say 7070).You can do this by using below commands.

sudo defaults write /Library/Preferences/org.jenkins-ci.plist httpPort 7070

sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist

step 3. Try to access it in browser, http://localhost:7070. It should work!!